4th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Enhancing cognitive radios with spatial statistics: From radio environment maps to topology engine

  • @INPROCEEDINGS{10.1109/CROWNCOM.2009.5189370,
        author={Janne Riihij\aa{}rvi and Petri M\aa{}h\o{}nen and Marina Petrova and Vinay Kolar},
        title={Enhancing cognitive radios with spatial statistics: From radio environment maps to topology engine},
        proceedings={4th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
        publisher={IEEE},
        proceedings_a={CROWNCOM},
        year={2009},
        month={8},
        keywords={Cognitive radio Collaboration Collaborative work Databases Engines Network topology Radio transmitters Statistics Wireless communication Wireless networks},
        doi={10.1109/CROWNCOM.2009.5189370}
    }
    
  • Janne Riihijärvi
    Petri Mähönen
    Marina Petrova
    Vinay Kolar
    Year: 2009
    Enhancing cognitive radios with spatial statistics: From radio environment maps to topology engine
    CROWNCOM
    IEEE
    DOI: 10.1109/CROWNCOM.2009.5189370
Janne Riihijärvi1,*, Petri Mähönen1,*, Marina Petrova1,*, Vinay Kolar1,*
  • 1: Department of Wireless Networks, RWTH Aachen University, Kackertstrasse 9, D-52072 Aachen, Germany
*Contact email: jar@mobnets.rwth-aachen.de, pma@mobnets.rwth-aachen.de, mpe@mobnets.rwth-aachen.de, vko@mobnets.rwth-aachen.de

Abstract

Radio environment maps are a promising architectural concept for storing environmental information for use in cognitive wireless networks. However, if not applied carefully their use can lead to large amounts of measurement data communicated over wireless links, causing substantial overhead. We propose enhancing the basic radio environment map concept by spatial statistics and probabilistic models, enabling applications to benefit from environment data while reducing overhead. In this paper we discuss the development of a topology engine, an agent in the CWN collecting and processing spatial information about the environment for storage in the REM. We discuss both technical and architectural issues in enabling such an approach, and outline some of the potential application scenarios for the topology engine.